Index: Makefile
===================================================================
--- Makefile	(revision 487742)
+++ Makefile	(working copy)
@@ -16,7 +16,7 @@
 LIB_DEPENDS=	libicudata.so:devel/icu
 RUN_DEPENDS=	znc:irc/znc
 
-USES=	gmake ssl
+USES=	compiler:c++11-lang gmake ssl
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	jreese